1698042864 has 120 divisors (see below), whose sum is σ = 5148755280. Its totient is φ = 480786432.

The previous prime is 1698042847. The next prime is 1698042869. The reversal of 1698042864 is 4682408961.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1698042869) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 262582 + ... + 268970.

It is an arithmetic number, because the mean of its divisors is an integer number (42906294).

Almost surely, 2^1698042864 is an apocalyptic number.

1698042864 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1698042864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2574377640).

1698042864 is an abundant number, since it is smaller than the sum of its proper divisors (3450712416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1698042864 is a wasteful number, since it uses less digits than its factorization.

1698042864 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6527 (or 6514 counting only the distinct ones).

The product of its (nonzero) digits is 663552, while the sum is 48.

The square root of 1698042864 is about 41207.3156611784. The cubic root of 1698042864 is about 1193.0250143066.

The spelling of 1698042864 in words is "one billion, six hundred ninety-eight million, forty-two thousand, eight hundred sixty-four".